body {
    background: #f3f6f9;
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.todos-uebersicht {
    max-width: 900px;
    margin: 32px auto;
    padding: 24px;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.08);
}

h1 {
    text-align: center;
    color: #17527d;
}

.todo-filter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.todo-filter form {
    display: flex;
    gap: 12px;
}

.filter-btn {
    background: #20b759;
    color: #fff;
    border: none;
    padding: 9px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.17s;
}
.filter-btn:hover {
    background: #15895a;
}

.action-btn {
    background: #17527d;
    color: #fff;
    padding: 10px 18px;
    border-radius: 7px;
    font-weight: 500;
    text-decoration: none;
    transition: background 0.18s;
}
.action-btn:hover {
    background: #113c57;
}

.todo-list {
    margin-top: 18px;
}

.todo-table {
    width: 100%;
    border-collapse: collapse;
    background: #f5fbf7;
}

.todo-table th, .todo-table td {
    padding: 12px 10px;
    border-bottom: 1px solid #e0e0e0;
    text-align: left;
}

.todo-table th {
    background: #e5f7ed;
    color: #197245;
    font-weight: 600;
}

.status-offen {
    color: #20b759;
    font-weight: 600;
}
.status-erledigt {
    color: #aaa;
    text-decoration: line-through;
    font-weight: 600;
}

.table-btn {
    background: #20b759;
    color: #fff;
    padding: 6px 14px;
    border-radius: 6px;
    margin-right: 4px;
    text-decoration: none;
    font-size: 0.97em;
    transition: background 0.18s;
}
.table-btn:hover {
    background: #14793b;
}
.erledigen-btn {
    background: #aaa;
}
.erledigen-btn:hover {
    background: #444;
    color: #fff;
}